1   /**
2    * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved.
3    *
4    *
5    *
6    *
7    * The contents of this file are subject to the terms of the Liferay Enterprise
8    * Subscription License ("License"). You may not use this file except in
9    * compliance with the License. You can obtain a copy of the License by
10   * contacting Liferay, Inc. See the License for the specific language governing
11   * permissions and limitations under the License, including but not limited to
12   * distribution rights of the Software.
13   *
14   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20   * SOFTWARE.
21   */
22  
23  package com.liferay.util.servlet.filters;
24  
25  import java.io.DataOutputStream;
26  import java.io.IOException;
27  import java.io.OutputStream;
28  
29  import javax.servlet.ServletOutputStream;
30  
31  /**
32   * <a href="CacheResponseStream.java.html"><b><i>View Source</i></b></a>
33   *
34   * @author Alexander Chow
35   */
36  public class CacheResponseStream extends ServletOutputStream {
37  
38      public CacheResponseStream(OutputStream os) {
39          _dos = new DataOutputStream(os);
40      }
41  
42      public void close() throws IOException {
43          super.close();
44  
45          _closed = true;
46      }
47  
48      public boolean isClosed() {
49          return _closed;
50      }
51  
52      public void write(int b) throws IOException {
53          _dos.write(b);
54      }
55  
56      public void write(byte[] b) throws IOException {
57          _dos.write(b);
58      }
59  
60      public void write(byte[] b, int off, int len) throws IOException {
61          _dos.write(b, off, len);
62      }
63  
64      private boolean _closed;
65      private DataOutputStream _dos = null;
66  
67  }